<!-- 无语义的布局标签 -->
<!-- 
div 独占一行；被称为大盒子
span 不换行 
-->

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>div和span无语义标签</title>
</head>
<body>
    <div>div的内容，独占一行</div>
    <span>span的内容，不换行</span>
</body>
</html>